I just updated a package of mine and added a rendered version of an example as png to the README using [...](...) Markdown syntax. The png is stretched to the container width, which on Desktop means that the font is very large but only a part of the example fits on the screen. I want to avoid adding a “letterbox” as that would reduce size on small screens.
Is there a way to specify the (maximum) width of an image included in the README that Universe would understand? More generally, what Markdown dialect does Universe use/what features does it support?